| Deposit ID | 60000203 |
|---|---|
| MRDS ID | D000804 |
| Record type | District |
| Current site name | Helvetia-Rosemont District |
| Alternate or previous names | Helvetia Deposit, Peach-Elgin, Broadtop Butte, Rosemont, Copper World |
| Related records | 10210685 |
| Geographic coordinates: | -110.78398, 31.86683 (WGS84) |
|---|
Political divisions (FIPS codes)
Pima(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Helvetia(quadrangle 1:24,000 scale)
Fort Huachuca(quadrangle 1:100,000 scale)
Nogales(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Santa Cruz(hydrologic unit)
Santa Cruz(hydrologic accounting unit)
Middle Gila(hydrologic subregion)
Lower Colorado(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management AZ)
Bureau of Land Management AZ BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Arizona | Pima |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Silver | Secondary |
| Zinc Critical | Secondary |
| Tungsten Critical | Tertiary |
| Molybdenum | Tertiary |
| Model code | 58 |
|---|---|
| USGS model code | 18a |
| Deposit model name | Porphyry Cu, skarn-related |
| Mark3 model number | 9 |
| (1) | -110.78398, 31.86683 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | BACKBONE FAULT-- A COMPLEX ZONE CONSISTING OF THRUST FAULTS, HIGH-ANGLE NORMAL AND REVERSE FAULTS, TEAR FAULTS; FOLDING |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Discovery year | 1861 |
| Year of first production | 1870 |
| District name | HELVETIA-ROSEMONT DISTRICT |
|---|
| Type | Owner |
|---|---|
| Owner | AMERICAN SMELTING AND REFINING COMPANY (ASARCO) |
| Year | 1992 |
LEMMON, D.M., UNPUBLISHED DATA.
LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.
SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: U.S. BUREAU OF MINES SPECIAL PUBLICATION, 334 P.
ANZALONE, S.A., AND BROWN, R.L., 1992, GEOLOGYOF THE HELVETIA COPPER DEPOSIT--ARIZONA: SOCIETY FOR MINING, METALLURGY, AND EXPLORATION, INC. PREPRINT NO. 92-61, 5 P.
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:
Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.